Kenneth H. MacLeod

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Las Vegas, NV, US

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Patents Grantslast 30 patents

Information Patent Grant
Rotatable fill pipe with collapsible backfill elbow and method of e...
- Patent number 4,666,346
- Issue date May 19, 1987
- Hanna-Beric Systems, Inc.
- Kenneth H. MacLeod
- E21 - EARTH DRILLING MINING